EP2596924A1 - Sciage de lamelles de bois - Google Patents

Sciage de lamelles de bois Download PDF

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Publication number
EP2596924A1
EP2596924A1 EP12171079.2A EP12171079A EP2596924A1 EP 2596924 A1 EP2596924 A1 EP 2596924A1 EP 12171079 A EP12171079 A EP 12171079A EP 2596924 A1 EP2596924 A1 EP 2596924A1
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EP
European Patent Office
Prior art keywords
lamellae
starting
sawing
band saw
slats
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12171079.2A
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German (de)
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordpan Rubner Holzbauelemente GmbH
Original Assignee
Nordpan Rubner Holzbauelemente GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordpan Rubner Holzbauelemente GmbH filed Critical Nordpan Rubner Holzbauelemente GmbH
Priority to EP13195145.1A priority Critical patent/EP2703137A3/fr
Priority to EP12171079.2A priority patent/EP2596924A1/fr
Publication of EP2596924A1 publication Critical patent/EP2596924A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B15/00—Band or strap sawing machines specially designed for length cutting of trunks
    • B27B15/02—Band or strap sawing machines specially designed for length cutting of trunks with horizontally-guided saw blade, i.e. horizontal log band saw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/005—Methods for subdividing trunks or logs essentially involving sawing including the step of dividing the log into sector-shaped segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
    • B27M3/0053—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/006—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected both laterally and at their ends

Definitions

  • a lamella means a relatively thin board, with a maximum thickness of 40 mm, preferably a maximum of 30 mm.
  • Such lamellae can be used for various applications, for example for the production of multilayer flat materials, in particular so-called solid wood panels in which, for example, three or five layers of lamellae are formed and adhesively bonded to one another.
  • solid wood panels may be of interest for the furniture industry, for interior fittings or even for the production of entire building walls.
  • the lamella production takes place in specialized enterprises of the wood-processing industry, which subdivide boards purchased by sawmills (with larger strengths) with the help of circular saws at least with regard to the strength. For example, five slats of correspondingly lower thickness can be sawn from one board.
  • the present invention is based on the problem of specifying an economical method for sawing slats an associated system.
  • This problem is solved by a method for sawing slats of unedged starting wood, in which the slats are sawed off with a band saw directly from the output woods along the direction of growth and by a plant designed for this purpose with a transport device for gripping untrimmed outgoing lumber on its natural outer surface and feeding the starting lumber to a band saw, which is designed for sawing lamellae directly from the starting lumbers.
  • the invention is characterized by the unedged starting wood used and sawed off with a band saw directly from fins. "Immediate” or “direct” means here that in the sawing process a sawed-off piece is a lamella and does not have to be further subdivided into a lamella in the following. It is therefore not a question of sawing unedged outgoing timber between formats, in particular boards with greater thickness than slats, and then subdividing them separately.
  • Ungebaumte starting woods are in the context of this invention, those having at least one natural outer surface and preferably up to at most two or more preferably at most one sawn outer surface exclusively natural outer surfaces.
  • a natural outer surface is an outer surface of the plant with bark or debarking, but no sawn surface. In the natural outer surface so the original outer surface of the trunk or other round logs can be recognized.
  • round timbers which includes trunk lengths, ie the direction of growth for subdivided logs
  • simply split logs are preferably sawn.
  • a simple division of a round wood ie a trunk or a comparable piece of wood with circumferential natural outer surface
  • the invention is preferred.
  • unedged starting wood also allows for the consideration of relatively small roundwood formats, which are not considered for the production of boards at all and were previously used only for the production of low-value products such as packaging or wooden pallets or for energy.
  • the inventor proposes to "skip" the more or less standardized or in any case usual intermediate "board” in the slat production and saws directly slats. Boards can then be sawn for other applications where the board format is actually used as such, or further processed into other formats (other than slats). Because the commercial intermediate "board” is of course in the art by far not only the lamellar production but also many other purposes. This is precisely why it has become established as a standard starting material for sawmills.
  • the subdivision of the round timbers in crescents has the advantage in the context of the invention of providing at least one contact surface for the subsequent lamellar sawing process. But you can also undivided round logs along natural Run outer surfaces on contact surfaces (see below for the keyword "trimming") and cut lamellae directly from the roundwood. Thus, starting from one side of the approximately circular cross-section, the cross-sectional profile would be ablated to the other side. If initially, preferably with a band saw, crescents or similar simply divided round logs are used as starting lumber, then already created sawing surfaces, from which starting the lamellae can be sawed off (but not necessarily). This band saw for easy parts of the round logs is preferably the band saw for sawing the slats immediately ahead, so located in the sense of editing upstream directly in front of it and belongs to the same overall system.
  • undried starting woods such as crescents
  • the fins can be dried quite quickly and the inventor has found that the sawing of undried wood leads, for example in knotholes to significantly fewer outbreaks and thus ultimately better wood quality or a smaller number of repairs.
  • Under undried wood is here preferably understood as having at least 15%, 20% or, in the most favorable case, 30% residual moisture.
  • the lamellae have a width which is unchanged relative to the original round lumbers, that is to say they have not been subdivided with regard to their width direction (perpendicular to the direction of growth and to the thickness direction, ie the smallest length extension of the lamella). This is for many applications, in particular those described below, the cheapest, cheapest in terms of waste and the least connecting points generating way to further processed product.
  • a preferred embodiment of the invention provides a pulling section of the band saw, wherein the saw blade to the transport direction forms an oblique angle and in this sense (with its projected on the transport direction movement component) along with the transport direction of the output woods.
  • a preferred angular range for the angle between the transport direction of the output woods and the transport direction of the saw blade is between 45 ° and 80 °. As lower limit are increasingly preferred 50 ° and 55 ° and 60 °. As upper limits are increasingly preferred 75 ° and 70 °.
  • a further preferred embodiment of the invention but as a precaution also independent of the features of claim 1, so the direct sawing of the unedged Credshölzer to slats with a band saw is disclosed (the formation of corresponding claims reserved), is the conical trimming of sawn Slats to better take into account the natural conical habit of the roundwoods.
  • this can be done by applying the unedged output edge to a corresponding guide, so that the trimming at least approximately follows the growth habit.
  • any angled edging should be included, which, in terms of its sign (the direction of slimming), is closer to the natural growth habit than a trimming parallel to the growth direction, as in the prior art.
  • the mean value is decisive.
  • the conical trimming of the lamellae concerns the trimming cut along a natural outer surface, wherein, as already mentioned, the latter preferably serves as a leading edge. Accordingly, in the method according to the invention it is certainly possible for blades with only one conically edged edge or without a conically edged edge to occur, namely when the complete round wood width is not present in the blade. It may well be desirable to limit the slat width or to normalize it within a certain tolerance range. However, the processing of so-called "falling widths", so the full occurring in the original round timber widths (of course, less trimming) is preferred.
  • the sawn lamellae can be dried particularly quickly.
  • spacers are used to create sufficient gaps in lamella stacks for hot air drying.
  • the spacers may be perforated, such as in the form of perforated aluminum strips.
  • they are perforated in both transverse directions (with respect to the longitudinal direction of the strip), as shown in more detail in the embodiment.
  • the trimming can be done before or after drying.
  • the trimming preferably takes place before and after the drying, and in a particularly preferred manner as mentioned above conical (and again also independent of the features of claim 1).
  • the Beachim Vietnamese before drying can thereby facilitate the stacking process, because irregular edge profiles are sawn off and thus more effective stacking is possible.
  • the Beachimvorgang after drying can specify the slightly thrown by the drying process edge. In none of the Beachim vinegare steps, it is imperative that the edged edge is precisely straight; Rather, it may be sufficient to substantially eliminate the irregularities existing / caused by the untrimmed edge or the drying process and to produce an edge suitable for further processing.
  • the lamellae have at least one conical edge, that is to say an edge chamfered obliquely relative to the direction of growth, an order alternating with respect to the conicity is preferred in the further processing into flat products.
  • the lamellae can be glued together along the edges, in particular in order then to be glued as surface product to another layer.
  • the invention is directed to the production of so-called "massive hoizpiatten", namely multi-layer glued surface products from just such slats.
  • the lamellae can be glued with respect to adjacent layers crossed fiber and growth direction; preferably at least three layers are present.
  • Alternating means preferably, alternating from single lamellae to single lamellae, thus reversing the direction of growth. But especially at low Konizticianswinkeln that is not mandatory and can, for. B. also two adjacent lamellae be the same orientation and then again two vice versa.
  • the conicity angles can follow the natural outer surface by serving as a contact surface or by otherwise losing as little as possible by the trimming cut by means of angle adaptation. Then the conicity angles are statistically distributed. The alternating order In many cases alone, due to this statistical distribution, it is possible to ensure that there are not too great deviations between the desired main fiber direction in the desired position and the fiber direction actually present in each slat or between the desired main fiber direction and the edge profile.
  • the multilayer products according to the invention can be edged on their edges and glued together so that, at least in one dimension, a quasi-continuous format is created.
  • shocks produced by these shanks are not really troublesome in the superficial appearance, wherein preferably the impacts in the visible layers run approximately perpendicular to the fiber direction and accordingly at center layers preferably along the fiber direction.
  • gluing along the conical edged edges are made in the visible cover layers but also vertical gluing, at least if appropriate lengths of the sheet material are desired.
  • Individual lengths can then be tailored individually to the order of the "endless format" created by the shots, depending on the individual customer commission, or in other ways. This also eliminates the otherwise occurring in the production of multi-layer products in standard lengths blend in the form of the difference between these standard lengths and an individually desired length.
  • a system according to the invention is preferably characterized in that the first transport device (in the sense of the time sequence of the processing steps) for gripping undivided round timbers, ie logs, is designed on its natural outer surface.
  • This transport device can then feed the logs to a saw for sharing, especially for sharing in crescents.
  • the split round logs offer at least a straight contact surface and therefore do not necessarily require special measures during further processing.
  • FIG. 1 shows an overall view of a plant according to the invention in perspective from above.
  • individual of the growth direction are cut to truncated logs 1 (trunks of 3 m) via an unspecified inclined ramp of (with respect FIG. 1 ) are promoted down to the top and then in relation to FIG. 1 debarked from right to left of spiked wide rollers and fed to a first band saw 2.
  • the band saw 2 divides the logs 1 approximately centrally, vertically and longitudinally into crescents 3. The logs are thereby gripped on their round natural outer surface.
  • FIG. 1 On the way to the first Vertikalbandsäge 2 can be seen in FIG. 1 a circle.
  • This circle symbolizes the radius of action of a home user, which ensures an alternating sequence of the trunks with regard to the orientation of the braid and head (thinner or thicker end). This facilitates the later described alternating series of conical slats.
  • the trunks are rotated about a vertical axis, with the two trunk ends together describing approximately the circle drawn with a diameter of about 3 m.
  • the generated half moons 3 are then again a piece transverse to their longitudinal direction (in FIG. 1 down) transported and then supplied with upwardly facing natural outer surface four in principle similar second band saw 4.
  • the band saws 4 are in FIG. 1 drawn as elongated rectangles, wherein the saw band circulates approximately to these rectangles. It can be seen that the rectangles are at an angle of 65 ° to the transport direction (horizontally in FIG. 1 ) stand. Accordingly, the cutting plane of these band saws 4 is horizontal (in the plane of the FIG. 1 ), wherein the direction of movement of the band saw blade forms an angle of 65 ° in the intersection of the angular position of the rectangles corresponding to the transport direction and is tilted with respect to the vertical orientation by 25 °.
  • the projected on the transport direction component of the saw blade movement direction is the same direction to the transport direction of the crescents 3, ie in FIG. 1 from right to left (so-called pulling cut).
  • the bandsaw pair 4 arranged at the same height with respect to the transport direction of the crescents 3 saws off a first lamella from a respective crescent 3 and the band saw pair 4 of the same crescents 3 following the direction of transport descend a further lamella.
  • the crescents 3 each pass first through a band saw 4 of the first pair, then are slightly offset inwardly (towards the center of the band saw assembly) and pass through one of the band saws 4 of the second pair. Behind them, they are transported inwards and, as indicated in the drawing, transported against the transport direction between the Bandsägecruen 4 back forward again, and then re-enter one of the band saws of the first pair.
  • the crescents 3 are thus recirculated to one of the two sides of the pair arrangement of band saws 4, until they are completely sawed to lamellae and a last remainder piece. The remaining piece is chopped up in a manner not shown.
  • the vertical line pair in FIG. 1 indicates that the chopped remnants of roundwood processing are removed from the plant area (in FIG. 1 to the top). They can be used as fuel.
  • FIG. 2 shows a highly schematic representation of a round wood profile of a trunk 1 with a central saw cut 5 of the band saw 2 and parallel saw cuts 6 of the band saw 4. It can be clearly seen that the remaining pieces 7 make up a minimal share of the original round wood profile and thus a waste minimized slat production , If boards had been sawed from the round timber profile before, would be clear because of the predetermined widths larger residual pieces 7 (similar shape) and additional remnants incurred by the straight trimmed edges of the boards.
  • FIG. 3 symbolizes the saw geometry of the band saws 4.
  • the saw band is shown in sections and is symbolic of the entire band saw.
  • a crescent is drawn, which moves along its longitudinal direction, as the arrow shows.
  • This sawing plane is horizontal.
  • FIG. 1 shows at 8 a transverse conveyor, the sawed slats, which at this point in FIG. 1 denoted by 9, receives and with respect to FIG. 1 upwards and actually horizontally transported sideways. As a result, they are fed to a trimming saw 10, in which the in FIG. 2 recognizable natural outer surface of the slats serves as a leading edge and slides along a bearing edge. The circular saw trimmed accordingly angled to the growth direction on one side. The unilaterally edged slats 9 are then trimmed by a second Beklad Vietnamesesäge 10 'on the other side, in a mirror image.
  • the completely trimmed lamella is slightly trapezoidal, so has two angled to the direction of growth and as a result of this angled position converging towards each other long side edges, which is referred to here as "conical trimmed".
  • the term “conical” refers ultimately to the three-dimensional growth form of the trunk itself, which is thinner in relation to the tree above than below.
  • FIG. 4 illustrates the saw geometry and the second Beklamsäge 10 ', in which case the circular saw blade is shown representative and designated 10'. It is parallel and at a distance to a contact device 11, along which the blade 9 is guided with a natural outer edge. This outer edge is drawn throughout and dashed to offset parallel not trimmed Beklamline. On the opposite side of the lamella 9, the already edged outer edge is drawn continuously and the natural outer edge no longer present here is dashed. The taper of the cut and the irregularities and of course the length-width ratio of the blade 9 are exaggerated.
  • the finished trimmed lamellae 9 with, for example, 5 mm to 6 mm thickness are then stacked in a device 12 (next to which a person is shown for clarification of the scales). In this case, they lie with respect to their edged edges slightly spaced in a plane next to each other and are the levels of aluminum spacers, namely flat long slats with vertical and horizontal communicating ventilation holes, separated from each other.
  • the slat-shaped spacers run perpendicular to the slat longitudinal direction.
  • FIG. 5 shows some fins 9 which are separated by corresponding spacers 25.
  • FIG. 6 shows a single spacer laterally and from above, namely a lath-shaped perforated aluminum strip 25. The holes shown are continuous and penetrate the aluminum strip 25 in both transverse directions to provide for a particularly good ventilation.
  • the stacks are constructed in the stacking device 12 on rail cars, which along in FIG. 1 vertically extending rails 13 and in FIG. 1 horizontally extending rails 14 can be moved. Left of the rails 13 is in FIG. 1 to see a trolley warehouse and above, so on the second Beklamsäge 10 'and to the left thereof, a warehouse with corresponding pallets and spacers.
  • the two warehouses are located on the ground floor of the hall and the already explained elements 2 to 10 'on the first floor.
  • the logs 1 are transported on the right side along an oblique transport up to the first floor and when stacked in the stacker 12, the fins are moved down from this first floor.
  • a finished lamella stack is moved along the rails 13 so that it is in relation to FIG. 1 left in front of an elongated drying hall 15 on this associated rails 14 can be added. Drying in the drying hall is carried out by circulating warm air, whereby the humid warm air is released into the environment at intervals. The hitherto undried slats are brought here to a degree of drying of about 8% relative humidity.
  • the rail car with the lamella stacks out and up proceed and brought over a definitely marked rail 14 back to the rails 13. They can be stored there (as well as before drying) in the carriage storage and then come to an implied destacking means 16.
  • the unstacked fins are then by two other Beklam Vietnamesesäge 17 and 17 'again and only marginally trimmed to pass through the Drying incurred distortions of the Beklamsägen 10 and 10 'produced edges to straighten.
  • the re-trimmed edges are substantially conical in the same way as the previous ones because the previous edges serve as a guide and guide.
  • the lamellae 9 are then supplied to a here only roughly indicated plant area 18 in which the lamellae with regard to their quality machine with a camera and an electronic image analysis and possibly double check also visually (by people) checked and in to sorted into four quality levels.
  • the lamellae are then glued alternately in direct succession (that is, with the direction of growth reversed from neighbor to neighbor) at the edging edges.
  • the resulting surface product is still single-layered and typically has (in the finished state) dimensions of 1 250 mm (lamella length) by 3 000 to 6 000 mm in length (lamellae).
  • the non-conical edges of the slats can be glued, so that the still single-layer surface product in the appropriate direction beyond the slat length, ie, for example, with a slat length of about 3 000 mm by simply gluing together along the original face corresponding edges a surface product of 6 000 mm is created.
  • the hot press 22 are thereby used for the outer layers surface products with running in the future longitudinal direction of fiber direction, so here so the conically edged edges are also approximately along.
  • sheet products having transverse fiber direction and corresponding orientation of the tapered edges are used (for a five-layered product, this would apply to layers 2 and 4 and the fiber orientation of the middle layer would correspond to cover layers).
  • the hot press 22 can process a multiple of the lamella length, it may either be expedient to produce a corresponding multiple of the lamella length in the preceding edge-bonding step (as already mentioned) by gluing together on the face side. But you can also juxtapose two such single-ply surface products in the corresponding layers and put on each other butt, because the absence of the individual Kantenleimthetic after production of the surface gluing no longer plays a significant role.
  • the finished glued three-layer solid wood panels are then in the sense of a tongue and groove connection at its shorter side edge (ie transverse to the fiber direction of the thick layers) and glued together, creating a virtual endless format. This can then be cut to individual customer requirements and stacked to commissions. Incidentally, the finished three-layer solid wood panels are again trimmed along the longer side edge.
  • FIGS. 7a and b show conically edged lamellae 9 in a sequence in an alternating sequence, namely a middle layer 26 of the solid wood panels produced in Figure 7a and a topsheet 27 in FIG FIG. 7b ,
  • the conicity angles and their fluctuations are exaggerated.
  • the right-angled ends should symbolize the commission-specific lengthening of the virtual endless format. the length l is therefore largely freely selectable.
  • 28 indicates busied connection points.
  • the reference numerals L and 28 thus relate to the finished solid wood panel.
  • the devices designated by 23 permit a separate supply of single-layer surface products for the gluing to three-layer solid wood panels, in particular of cover layers from other production.
  • different wood qualities can be used here, and the lamellae from roundwood processing, for example, can only be used for the middle classes. If, in such cases, the previously described lamellar production ejects too many fins, a portion of this production can be discharged and temporarily stored or otherwise processed via a plant area summarily designated 24.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP12171079.2A 2012-06-06 2012-06-06 Sciage de lamelles de bois Withdrawn EP2596924A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13195145.1A EP2703137A3 (fr) 2012-06-06 2012-06-06 Procédé de sciage de lamelles de bois et de la fabrication d'un produit multicouche
EP12171079.2A EP2596924A1 (fr) 2012-06-06 2012-06-06 Sciage de lamelles de bois

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12171079.2A EP2596924A1 (fr) 2012-06-06 2012-06-06 Sciage de lamelles de bois

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EP13195145.1A Division EP2703137A3 (fr) 2012-06-06 2012-06-06 Procédé de sciage de lamelles de bois et de la fabrication d'un produit multicouche

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EP2596924A1 true EP2596924A1 (fr) 2013-05-29

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EP12171079.2A Withdrawn EP2596924A1 (fr) 2012-06-06 2012-06-06 Sciage de lamelles de bois
EP13195145.1A Withdrawn EP2703137A3 (fr) 2012-06-06 2012-06-06 Procédé de sciage de lamelles de bois et de la fabrication d'un produit multicouche

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3042744A1 (fr) 2015-01-09 2016-07-13 Johann Offner Betelligungs-Gesellschaft m.b.H. Lamelles en bois naturel et planches, plaques et poutres etant ainsi fabriquees

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU923805A1 (ru) * 1980-12-15 1982-04-30 Gol K B Derevoobrabatyv Oboru Способ продольной распиловки древесины 1
EP0185397A1 (fr) * 1984-12-21 1986-06-25 Planox Oy Méthode pour scier un tronc d'arbre et pour traiter un disque en bois scié de ce tronc avec une épaisseur uniforme
DE10122745A1 (de) * 2001-05-10 2002-11-14 Guenter Grimme Direkteinschnitt von Lamellen aus Rundholz

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557410A (en) * 1978-10-26 1980-04-28 Chugoku Kikai Seisakusho Kk Sawing method of wood

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU923805A1 (ru) * 1980-12-15 1982-04-30 Gol K B Derevoobrabatyv Oboru Способ продольной распиловки древесины 1
EP0185397A1 (fr) * 1984-12-21 1986-06-25 Planox Oy Méthode pour scier un tronc d'arbre et pour traiter un disque en bois scié de ce tronc avec une épaisseur uniforme
DE10122745A1 (de) * 2001-05-10 2002-11-14 Guenter Grimme Direkteinschnitt von Lamellen aus Rundholz

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3042744A1 (fr) 2015-01-09 2016-07-13 Johann Offner Betelligungs-Gesellschaft m.b.H. Lamelles en bois naturel et planches, plaques et poutres etant ainsi fabriquees

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EP2703137A2 (fr) 2014-03-05
EP2703137A3 (fr) 2014-07-02

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